diff --git a/docs/assets/extra.css b/docs/assets/extra.css
index e69de29bb..d52a3ca82 100644
--- a/docs/assets/extra.css
+++ b/docs/assets/extra.css
@@ -0,0 +1,5 @@
+:root > * {
+  --md-primary-fg-color:        #2A8FBD;
+  --md-primary-fg-color--light: #ECB7B7;
+  --md-primary-fg-color--dark:  #90030C;
+}